FI934014A - Tillvaratagning av rikligt med syre innehaollande gas i ozonblekningsprocess - Google Patents

Tillvaratagning av rikligt med syre innehaollande gas i ozonblekningsprocess Download PDF

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Publication number
FI934014A
FI934014A FI934014A FI934014A FI934014A FI 934014 A FI934014 A FI 934014A FI 934014 A FI934014 A FI 934014A FI 934014 A FI934014 A FI 934014A FI 934014 A FI934014 A FI 934014A
Authority
FI
Finland
Prior art keywords
tillvaratagning
rikligt
ozonblekningsprocess
syre
innehaollande
Prior art date
Application number
FI934014A
Other languages
English (en)
Finnish (fi)
Other versions
FI934014A0 (fi
Inventor
Derek Hornsey
Gordon H Homer
John R Ayton
Original Assignee
Liquid Air Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liquid Air Canada filed Critical Liquid Air Canada
Publication of FI934014A0 publication Critical patent/FI934014A0/fi
Publication of FI934014A publication Critical patent/FI934014A/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0229—Purification or separation processes
    • C01B13/0248—Physical processing only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0203—Preparation of oxygen from inorganic compounds
    • C01B13/0211—Peroxy compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0043—Impurity removed
    • C01B2210/0046—Nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Analytical Chemistry (AREA)
  • Paper (AREA)
FI934014A 1992-09-15 1993-09-14 Tillvaratagning av rikligt med syre innehaollande gas i ozonblekningsprocess FI934014A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002078276A CA2078276C (en) 1992-09-15 1992-09-15 Recovery of oxygen-rich gas from ozone bleaching processes

Publications (2)

Publication Number Publication Date
FI934014A0 FI934014A0 (fi) 1993-09-14
FI934014A true FI934014A (fi) 1994-03-16

Family

ID=4150411

Family Applications (1)

Application Number Title Priority Date Filing Date
FI934014A FI934014A (fi) 1992-09-15 1993-09-14 Tillvaratagning av rikligt med syre innehaollande gas i ozonblekningsprocess

Country Status (8)

Country Link
US (1) US5688367A (de)
EP (2) EP0971066B1 (de)
JP (1) JP3447773B2 (de)
CA (1) CA2078276C (de)
DE (2) DE69327999T2 (de)
ES (2) ES2193621T3 (de)
FI (1) FI934014A (de)
PT (2) PT588704E (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE516030C2 (sv) * 1994-11-14 2001-11-12 Aga Ab Regenerering av en gasblandning från ett ozonbleksteg
WO1997006305A1 (en) * 1995-08-07 1997-02-20 Beloit Technologies, Inc. Method for reprocessing an ozone-containing gas present in a pulp bleaching plant
US5695604A (en) * 1996-08-05 1997-12-09 Beloit Technologies, Inc. Method for reprocessing an ozone-containing gas present in a pulp bleaching plant
US6773547B2 (en) * 1998-05-08 2004-08-10 American Air Liquide, Inc. Process for the bleaching of low consistency pulp using high partial pressure ozone
US6579412B2 (en) * 1998-05-08 2003-06-17 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for ozone bleaching of low consistency pulp
SE0003391L (sv) * 2000-09-22 2002-03-23 Metso Paper Inc Blekningsförfarande samt system därför
US7351373B2 (en) * 2001-11-13 2008-04-01 Gebrueder Loedige Maschinebau-Gesellschaft Mbh Method for the oxidative treatment of bulk material
US6916359B2 (en) * 2002-04-25 2005-07-12 The Boc Group, Inc. Ozone production processes
US20070284245A1 (en) * 2006-06-13 2007-12-13 Hegel Rudolph R Water treatment system
CN101679082A (zh) 2007-03-07 2010-03-24 日本纤维素株式会社 不含有硫化物的黑液的处理方法
WO2009138090A2 (en) * 2008-05-14 2009-11-19 Rådet For Agroindustri A process for the production of hydrolysed plant material
DE102011011960A1 (de) 2011-02-22 2012-08-23 Messer Austria Gmbh Verfahren und Aufbereitung einer Faserstoffsuspension
DE102020002445A1 (de) * 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE333299B (sv) * 1967-11-10 1971-03-08 Sunds Ab Foerfarande vid och anordning foer blekning av foeretraedesvis cellulosamassa med gasformigt blekmedel
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5087326A (en) * 1991-02-20 1992-02-11 Union Camp Patent Holding, Inc. Rotating pulp bleaching reactor having inner and outer shells and lifting means on the interior surface of the inner shell
US5411633A (en) * 1991-04-30 1995-05-02 Kamyr, Inc. Medium consistency pulp ozone bleaching
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
US6126781A (en) * 1991-08-01 2000-10-03 Union Camp Patent Holding, Inc. Process for conditioning ozone gas recycle stream in ozone pulp bleaching
CA2089516A1 (en) * 1992-02-21 1993-08-22 Kaj Henricson Chlorine free pulping and bleaching sequence
WO1993018226A1 (en) * 1992-03-02 1993-09-16 Kamyr, Inc. Combined ozone destruction and fiber scrubbing in paper pulp mills

Also Published As

Publication number Publication date
DE69327999D1 (de) 2000-04-13
EP0971066B1 (de) 2003-02-26
ES2144448T3 (es) 2000-06-16
CA2078276C (en) 2004-05-25
US5688367A (en) 1997-11-18
JPH06184974A (ja) 1994-07-05
EP0971066A1 (de) 2000-01-12
DE69327999T2 (de) 2000-08-17
PT971066E (pt) 2003-07-31
FI934014A0 (fi) 1993-09-14
JP3447773B2 (ja) 2003-09-16
EP0588704B1 (de) 2000-03-08
ES2193621T3 (es) 2003-11-01
DE69332725D1 (de) 2003-04-03
EP0588704A3 (en) 1995-12-06
EP0588704A2 (de) 1994-03-23
DE69332725T2 (de) 2004-02-05
CA2078276A1 (en) 1994-03-16
PT588704E (pt) 2000-07-31

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MA Patent expired